Long time touring car driver. Guerra, was, for some years in charge of the Top Race V6 series, a touring car series in Argentina. He left this role in 2014 and for now, still works in motorsport administration, although he is again involved in touring car organisation. Now retired from a very successful racing career, which saw him win multiple Formula 2 and Formula 4 titles in Argentina between 1974 and 1977. However when he moved to Europe in 1978 for a joint crack at Formula 2 and Formula 3, his career faltered. After initially returning to Argentina to race in single-seaters again, he competed in touring cars in 1987, and then stayed in that category for 15 years, winning the TC2000 title in 1989.